Examine source code of CoinFlip

{
  "manifest_version": 2,
  "name": "CoinFlip",
  "version": "1.0",
  "description": "Let a coin flip decide your action!",
  "homepage_url": "https://github.com/nathan-lai234/coinFlip.git",
  "icons": {
    "48": "icons/coin_toss.svg"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/coin_toss.svg",
    "default_title": "CoinFlip",
    "default_popup": "popup/coin_flip.html"
  },
  "options_ui": {
    "page": "settings/options.html",
    "browser_style": true
  },
  "web_accessible_resources": [
    "overlay_style.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "coinFlip@nathanlai.com"
    }
  }
}